Video: Microsoft MS-DOS 5 Promotional Rap Video. Yes, Rap.

A improbably arrhythmic bow-tied professor raps to two preppy saps about the miraculous new features in Microsoft MS-DOS 5 update—it frees up 48k!*—punctuated by a chorus of three backup soul singers reminding us that "No PC should be without it!" An amazing five whole minutes long, as Professor Rap has a lot of ground to cover, including how much money you'll make selling MS-DOS 5, which is as easy as selling fries with a burger.
Do me a favor and blast this loud and proud in your office today, especially if you're still running some version of MS-DOS. (Thanks, John!)
* QEMM 4 LYFE, bitches.